TPS63020 Buck-Boost Power Supply Module Step up Down Converter

The TPS63020 buck-boost power supply module is a compact, high-efficiency DC-DC voltage converter designed for battery-powered and portable electronics. Based on Texas Instruments' TPS63020DSJR synchronous buck-boost converter IC, the module automatically switches between buck (step-down) and boost (step-up) operation, ensuring a stable output voltage even when the input voltage rises above or falls below the desired output.

With an input voltage range of 1.8V to 5.5V, output current up to 3A, and conversion efficiency up to 96%, the TPS 63020 module is an excellent choice for applications powered by alkaline batteries, NiMH batteries, NiCd batteries, Li-ion batteries, supercapacitors, and USB power supplies.

Whether you're designing portable electronics, IoT devices, ESP32 projects, or battery-powered sensors, the TPS 63020 provides reliable and efficient voltage regulation in a compact package.

1. What is the TPS63020 Buck-Boost Power Supply Module?

2. Pinout

3. Features

4. Specifications

5. Application

6. Equivalent and Alternative Board

7. Frequently Asked Questions[FAQ]

What is the TPS63020 Buck-Boost Power Supply Module?

The TPS 63020 module is a compact, high-efficiency DC-DC converter that automatically switches between buck (step-down) and boost (step-up) modes to maintain a stable output voltage. It operates from an input voltage of 1.8V to 5.5V, delivers up to 3A output current, and achieves up to 96% conversion efficiency. With a 2.4MHz switching frequency and ultra-low quiescent current below 50µA in Power Save Mode, it is ideal for battery-powered devices using alkaline, NiCd, NiMH, or single-cell Li-ion batteries. Typical applications include portable electronics, IoT devices, digital cameras, media players, and embedded systems.

TPS63020 Step up Down Module Pinout

EN (Enable)

The EN pin allows users to turn the module on or off using a microcontroller or logic signal.

· Logic High → Module ON

· Logic Low → Module OFF

By default, the module is permanently enabled. Users must remove jumper SB2 before controlling EN externally.

PS (Power Save)

The PS pin selects the operating mode.

· Low → Power Save Mode

· High → Normal PWM Mode

Power Save Mode significantly reduces standby current, making it suitable for battery-powered products.

PG (Power Good)

The PG pin indicates whether the output voltage is within regulation.

· High → Output voltage normal

· Low → Output fault detected

TPS63020 Voltage Converter Board Features

The TPS 63020 module offers several features that make it suitable for portable and embedded applications.

· Automatic buck and boost operation

· Up to 96% conversion efficiency

· 3A maximum output current

· 2.4MHz switching frequency

· Compact PCB design

· Low output ripple

· Low noise operation

· Ultra-low standby current

· Stable voltage regulation

· Power Good output

· Enable control

· Power-save mode

· Multiple preset output voltages

· Suitable for battery-powered devices

· High reliability

TPS63020 Specifications

Output Voltage Configuration

The module supports several preset voltages by selecting resistor values.

Output voltage follows:

R3=R1 (VOUT/VFB-1)

where VFB = 500mV.

Applications of TPS63020 Module

The TPS 63020 widely use in portable and battery-operated electronics where the input voltage changes over time.

Common applications include:

· ESP32 development boards

· Arduino projects

· STM32 embedded systems

· Wireless sensor nodes

· IoT devices

· GPS trackers

· Bluetooth devices

· Wearable electronics

· Portable media players

· Digital cameras

· Action cameras

· Handheld instruments

· Battery-powered displays

· Medical monitoring equipment

· USB-powered electronics

· RC electronics

· Portable data loggers

· Smart home devices

· Industrial monitoring systems

· Backup battery power systems

TPS63020 Equivalent and Alternative Board

TPS63000 Module

The TPS63000 module is another automatic buck-boost converter based on the Texas Instruments TPS63000 IC. It provides stable voltage conversion with low ripple and supports both normal and power-save operating modes. Users can select preset output voltages of 3.3V, 4.2V, or 5V, while an ADJ solder pad allows custom output voltage adjustment using external resistors.

Operating from 1.8V to 5.5V, the TPS63000 can supply up to 1.6A under suitable conditions, making it ideal for sensors, portable electronics, and single-cell Li-ion battery applications. Because maximum current depends on input and output voltage combinations, proper thermal management is recommended when operating at higher loads.

TPS63000 Specifications

TPS63802 Module

The TPS63802 module is a newer high-performance buck-boost converter designed for low-voltage battery-powered systems. It supports 1.3V to 5.5V input (1.8V startup), offers fixed 3.3V, 4.2V, and 5V output versions, and operates at a switching frequency greater than 1.4MHz. It also includes selectable normal and power-save modes for improved battery life.

This module is particularly well suited for powering ESP32, STM32, Arduino, and other microcontroller platforms from lithium batteries or USB power. Its compact design, low output ripple, and onboard power indicator make it an excellent choice for portable embedded applications.

TPS63802 Specifications

TPS63020 Datasheet PDF

The data sheet provides complete technical information, including electrical characteristics, application circuits, PCB layout recommendations, timing diagrams, thermal performance, and reference designs.

You can download the datasheet for more detailed information before integrating the module into your project.

Frequently Asked Questions[FAQ]

How to use the TPS63020 module for ESP32?

Connect the battery or power source to VIN and GND, then connect the module's VOUT to the ESP32's 3.3V or VIN input, depending on the selected output voltage. Ensure the output is configured correctly before powering the ESP32. The EN pin can be connected to a GPIO for software-controlled power management.

How do you configure the TPS63020 buck-boost converter with ESP32?

Most TPS63020 modules use preset resistor values to determine the output voltage. Select a module with a suitable fixed output or modify the feedback resistors for a custom voltage. Connect the EN and PG pins to ESP32 GPIOs if power control or voltage monitoring is required.

TPS63020 buck boost converter, how to use ENABLE pin?

The ENABLE (EN) pin controls whether the converter is active. Apply a logic HIGH to enable the module and a logic LOW to disable it. On most boards, the EN pin is enabled by default. To use external control, disconnect the onboard SB2 jumper before applying a control signal.

What is price of TPS63020 module?

The TPS63020 module is generally affordable, with prices typically ranging from US$2 to US$10, depending on the board design, output voltage version, brand, and retailer. Bulk purchases often reduce the unit cost, making it a cost-effective choice for commercial and DIY electronics projects.

Conclusion

The TPS63020 buck-boost power supply module is an efficient and versatile DC-DC converter for applications requiring stable voltage from changing battery sources. Its automatic buck-boost operation, up to 96% efficiency, low ripple, and support for output currents up to 3A make it ideal for portable electronics, IoT devices, embedded systems, and battery-powered equipment. With enable control, power-save mode, and compact size, it offers a reliable power solution for modern electronic designs.

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